CO2 Carbon Dioxide Sensors
O2 Oxygen Sensors  - Vaisala

Vaisala’s carbon dioxide instruments are suited to a wide range of applications
from fermentation and fruit storages to safety and ventilation control.

Carbon Dioxide Measurement Products in Brief:
•    Transmitters, modules, and handheld  meters
•    Both ppm and percentage level carbon dioxide measurements
•    Proprietary CARBOCAP® sensor
•    Measurement based on infrared absorption of carbon dioxide

Benefits:
•    Superior stability with built-in reference measurement
•    Minimal maintenance and calibration requirements
•    Insensitive to dust, water vapor, and most chemicals
•    Insensitive to changing air flow

On this page:

CO2 Products

OXYGEN O2 Products: please enquire

Prices do not include GST and may change without notice.

 

 

    Vaisala Catalog 9/2015 (large pdf file, 12MB, opens in new tab)
              Humidity,  Dew point,  Temperature,  Moisture in oil,  CO2,  Pressure,  Weather

For
Food Technology,
Horticulture,
Environment

High concentrations of carbon dioxide results in unconsciousness and even death, see table at right.

As high concentrations of CO2 are clearly hazardous, most countries have set exposure limits in the workplace.
In Great Britain, for instance, the weighted average exposure limit for an 8 hour working day is 5000 ppm;
a higher limit of 15,000 ppm applies to an exposure up to 10 minutes.

Applications where carbon dioxide can rise to dangerous levels include the brewing and carbonated drinks industries, food freezing using dry ice, cold storage, cargo ships, and, of course, plants where CO2 or dry ice is produced or handled.

Air quality and ventilation

Even when the carbon dioxide concentration is not high enough to cause problems, it is a good indicator of indoor air quality in general.
A high CO2 level is usually a sign of poor ventilation and the presence of odours and other pollutants such as volatile organic compounds (VOCs).
Poor ventilation also increases the risk of high humidity and in the worst case, a radon build-up in the building.
Demand Controlled Ventilation (DCV) is often based on carbon dioxide measurement.
Higher concentrations of CO2 indicate the presence of people in the room.

Beneficial effects in greenhouses

On the positive side, carbon dioxide can enhance plant growth.
In greenhouses and mushroom farms, the growth rate and development of mushrooms and plants - from cucumbers to most luxurious roses - can be improved by controlling the concentration of carbon dioxide.
This raises the productivity and quality of the crops.
In some cases, the CO2 concentration is used to control when fruits and vegetables ripen.
The concentration of CO2, however, must be carefully adjusted.
If the carbon dioxide level rises too high, the plants can be damaged or their growth stunted.

Food packaging

Adding carbon dioxide to food packaging can considerably extend the storage and shelf life of meat, cheese as well as fruit and vegetables.
In meat packaging, for example, a high concentration of CO2 in the packaging inhibits bacterial growth and retains the natural coloring of the meat.

Effect of Different Levels of CO2 on people

Concentration             Effect
350 - 450 ppm    Typical atmospheric concentration
600 - 800 ppm    Acceptable indoor air quality
1,000 ppm    Tolerable indoor air quality
5,000 ppm    Average exposure limit over 8 hours
6,000 - 30,000 ppm  Concern, short exposure only
3 - 8%         Increased respiration rate, headache
> 10%         Nausea, vomiting, unconsciousness
> 20%         Rapid unconsciousness, death

 
Information about 4-20mA Current Loops (opens in new tab)

NDIR = Non-Dispersive Infra Red (makes the sensor highly gas specific).

Products marked with "Configuration code required" need a product configuration form to be completed
along with your order. The configuration code instructs our factory how you need the product configured
such as scaling, outputs, cable lengths, mounting options etc. Some products can have up to 70,000
different combinations in the way they can me manufactured and it is important that we get the
configuration code correct since all configured products are made specifically to your order. Should you
have any questions or need any support completing a configuration form, please don't hesitate to contact our
office.

How to Measure Carbon Dioxide  (pdf file, opens in new tab)
Carbon dioxide measurement is required in many applications - building automation, greenhouses, to life science and safety.
This document covers the following topics:
    • Operation principle of infrared carbon dioxide (CO2) sensors
    • The ideal gas law and how to use it to compensate the CO2 measurement for environmental factors
    • Optimal locations for CO2 transmitters
    • Safety issues related to CO2

CarboCap NDIR Transmitters (Infra Red)  

These CO2 transmitters use the new silicon based CARBOCAP® sensor.
The simple structure and reference measurement capabilities make this
Single-Beam Dual-Wavelength NDIR sensor extremely stable and reliable.
The measurement accuracy of the sensor is not affected by dust, water vapor or most chemicals.

The Vaisala GMD20 / GMW20 transmitters are easy to install and require almost no maintenance (the recommended calibration interval is five years).
They are specially designed for Demand Controlled Ventilation and related applications.
The use of these transmitters results in considerable savings in installation, operation, maintenance and recalibration costs
as well as ensures the best possible control of air quality.

  NDIR = Non-Dispersive Infra Red (makes the sensor highly gas specific).


GMP343 Carbon Dioxide Probe for Ecological Measurements

Excellent accuracy and stability
For harsh environments
Diffusion and flow-through models
Wide operating temperature and humidity ranges
Compensation options for temperature, pressure, humidity and oxygen
Low power consumption and heat emission
Short warm-up time
Compact and light:  180mm long x 55mm dia.,   360gm
The GMP343 is available as an open path, diffusion aspirated model (left) and as a flowthrough model (right).

Refer to order form for all available options.

  Brochure on GMP343 (.pdf)     Order form showing options for GMP343 (.pdf)     Data on GMP343 (Vaisala site)

      Configuration code required
GMP343A CO2 Probe, diffusion aspiration      $ 3130.-   +GST    2/16
GMP343B CO2 Probe, flow through aspiration $ 3422.-

Options, Spare Parts  for GMP343

Options:
Options:Probe Cable(Selection 5)
   No cable (N) No Cable $No charge
  GMP343Z200 (A) 2m Probe Cable for GMM220 and GMP340 $ 36.-      2/16
  GMP343Z600 (B) 6m Probe Cable for GMM220 and GMP340 $ 58.-
  GMP343Z1000 (C) 10m probe Cable for GMM220 and GMP340 $ 66.-

Options:Measurement Indicator MI70 and accessories(Selection 6)
    No Accessories (0) No Accessories $No charge
    MI70&2MCABLE (1) MI70 with interface cable & accessories $ 1056.-
    DRW216050SP (2) Connection cable for MI70 $ 103.-

Options:Calibration accessories(Selection 7)
    No Accessories (N) No Accessories $No charge
    213100GM (A) Calibration adapter for GMP343A (diffusion model) $ 157.-
    (B) PC connection kit $ 202.-
    (C) Calibration adapter and PC connection kit $ 360.-

Options:Mounting accessories(Selection 8)
    No Accessories (0) No Accessories $No charge
    213101GM (1) Probe Mounting Flange for GMP343 $ 98.-

Options:Wiring accessories(Selection 9)
    No Accessories (N) No Accessories $No charge
    213106 (A) Junction box $ 44.-

GMP343: Spare Parts and Accessories
Accessories: Spare Parts
GMP343BRACKET Mounting bracket, spare part                      $ 92.-                2/16
GMP343FLANGE Probe mounting flange for GMP343, spare part $ 167.-
GMP343FILTER Dust filter including filter cover for GMP343,spare part $ 116.-
215521 PTFE filter for GMP343, spare part $ 175.-
GMP343ADAPTER Calibration adapter for GMP343A (the diffusion model) $ 182.-
JUNCTIONBOX-8 Junction box with 8-contacts, spare part $ 76.-

GMP343Z200SP 2m Probe Cable for GMM220 and GMP340 $ 66.-
GMP343Z600SP 6m Probe Cable for GMM220 and GMP340 $ 99.-
GMP343Z1000SP 10m Probe Cable for GMM220 and GMP340 $ 115.-
213379 PC Connection Cable $ 103.-
DRW216050SP Connection cable for MI70, spare part $ 103.-
219686 USB Cable D9, RS-232 $ 99.-
215519 Soil Adapter Kit - Horizontal Positioning of GMP343 $ 188.-
215520 Soil Adapter Kit for Vertical Positioning of GMP343 $ 188.-
19446ZZ RS232 Serial Interface Cable with D9 Female Connector $ 61.-
 

 

GMT220 Series Industrial Carbon Dioxide Transmitter
GMT221 & GMT222

GMT220 SeriesVaisala's GMT220 series are the first CARBOCAP® transmitters available for a wide range of industrial CO2 applications including:
greenhouses, fruit storage, safety alerts and demand-controlled ventilation in mushroom farms, livestock husbandry and parking garages.
The GMT220 series transmitters are designed to measure CO2 in harsh and humid environments.
The housing is dust and water proof to IP65/NEMA4. The materials have been chosen for extended corrosion resistance

The transmitter is easy-to-use and easy to install.
The GMT220 series transmitters have a modular structure, which includes a separate mounting plate that eases the installation.

Since the probes of the transmitter are truly interchangeable, they facilitate the field maintenance.
The probes can either be replaced by newly calibrated probes or separate ones that can be used as reference probes for calibration checking.
This minimizes the downtime and eliminates the need for expensive calibration equipment.

   Brochure on GMT221 & GMT222 (.pdf)    Order Form showing options (.pdf)    Data on GMT220 Series (Vaisala site)

The GMT222 is very well suited to monitoring CO2 levels in car parks for demand controlled ventilation, as it is protected against the harsh dust, water and exhaust fumes that often exist in car parks. Its built-in dual alarm relays can be factory pre-set to switch on at a given CO2 concentration, making the GMT222 a simple solution for the task. Typically for car parks these sensors are configured for a measurement range of 0-5000ppm, and the alarm set point can be configured as per council requirements (usually 1000ppm or higher).

     Configuration code is required

GMT221
  Industrial CO2 transmitter, incl probe.
Available ranges: 0..2%, 0..3%, 0..5%, 0..10%, and 0..20%
       Please specify range when ordering            $1048+GST     2/16

GMT222   Industrial CO2 transmitter, incl probe.
Available ranges: 0..2000 / 3000 / 5000 / 7000 & 10000 ppm
Has alarm contacts, 30VAC or 60VDC, 0.5A
        Please specify range when ordering            $1048

 

Options, Spare Parts and Accessories  for GMT220 Series

Options:Probe installation accessories(Selection 4)
    No Accessories (N) No Accessories $No charge     2/16
    25245GM (A) Probe mounting clips (2 pieces) $ 15.-
    GM45156 (B) Probe mounting flange $ 70.-

Options:Field check adapter(Selection 5)
    None (0) No Accessories $No charge
    26150GM (1) Field checking adapter for GMT220/GM70/GMM220 $ 118.-

Options:Display on cover(Selection 6)
    LED lights only (A) LED lights only $No charge
    GMT220SUB2 (B) Local display for GMT 221 & GMT 222 $ 131.-

Options:Wall/remote use(Selection 8)
    Wall Mount (N) probe in transmitter (wall model) $No charge
    25665GM (A) 2m probe cable with plug connector $ 119.-
    210848GM (C) 10m probe cable with plug connector $ 154.-

Options:Accessories(Selection 11)
    None (0) No Accessories $No charge
    19040GM (1) Serial COM Adapter (Vaisala Model) $ 189.-

    211921GM In-soil adapter for GMP221/222 $ 64.-

Spare Parts and Accessories:
GMP 221 Spare CO2 probe for GMT 221 $ 699.-    2/16
GMP 222 Spare CO2 probe for GMT 222 $ 699.-
25378GMSP Spare Filter + Cap for GMP221 $ 44.-
25879GMSP Spare Filter + Cap for GMP222 $ 44.-
GM45168SP Protective Sleeve for GMP221 $ 29.-
GM45237SP Protective Sleeve for GMP222 $ 29.-
25665GMSP 2m probe cable with plug connector, Spare Part $ 138.-
210848GMSP 10m probe cable with plug connector, Spare Part $ 178.-
25245GMSP Probe mounting clips (2 pieces), Spare Part $ 44.-
GM45156SP Probe mounting flange, Spare Part $ 82.-
26150GM Field checking adapter for GMT220/GM70/GMM220 $ 118.-
19040GM Serial COM Adapter (Vaisala Model) $ 189.-
225377 Power supply 24 V (for GMT221/222) (No AUS Connector) $ 44.-
GMM220AZ60SP 0.6 m cable with 90° female plug connector $ 146.-
GMP343Z200SP 2m Probe Cable for GMM220 and GMP340 $ 66.-
GMP343Z600SP 6 m Probe Cable for GMM220 and GMP340 $ 99.-
GMP343Z1000SP 10 m probe Cable for GMM220 and GMP340 $ 115.-
GMM220Z100SP 1m High T (150°C) Probe cable for GMM220, spare part $ 99.-
211921GM In-soil adapter for GMP221/222 $ 64.-
25230GM Conduit fitting & nut in a plastic bag $ 19.-
GM45160 Wall Assembly Plate for GMT220 $ 31.-
DRW216050SP Connection cable for MI70, spare part $ 103.-
GMA70 Adapter cable for transmitter $ 236.-
238869 High Temp. Cable, 2.0m M12-8P Male/Female $ 131.-
GMM220BOARD CO2 Module Board $ 218.-

 

GMP251   Compact   % Level   CO2 Probe for demanding use

GMP251 is a new intelligent probe for measuring carbon dioxide. This robust, stand-alone measurement device
is designed for use in demanding applications, like life science incubators, where stable, accurate performance is required.

GMP251A new type of infrared (IR) light source is used instead of the traditional incandescent light bulb, which extends the lifetime.
Measurement ranges 0...10% and 0 … 20% CO2   Intelligent, stand-alone probe with analog (V, mA) and digital (RS485) outputs
▪ Wide operating temperature range -40 … +60 °C
▪ IP65 classified housing
▪ Full temperature and pressure compensations
▪ Integrated temperature measurement for CO2 compensation purposes
▪ Compensations for background gases, O2, and humidity
▪ Sensor head heated to prevent condensation
▪ Applications: life science incubators, cold storages, fruit and vegetable transportation
   Dimensions: L 96mm, Ø 25mm, with 5-pin M12 connector
   Please specify range and analogue output settings when ordering
        Data on GMP251 (pdf file, opens in new tab)

    Configuration code required
GMP251 Carbon Dioxide Probe for % Level Measurements $ 757.-

GMP251: Options, Spare Parts & Accessories

Options: Probe Type (Selection 1)
0…20% (A) 0…20% CO2 range with standard filter $No charge
0…10% (B) 0…10% CO2 range with standard filter $No charge
0…5% (C) 0…5% CO2 range with standard filter $No charge
0…2% (B) 0…2% CO2 range with standard filter $No charge
0…20% (B) 0…20% CO2 range with flow-through adapter $ 29.-

Options: Output Mode (Selection 2)
RS485 Modbus (0) RS485 Modbus Protocol $No charge
RS485 Vaisala (1) RS485 Vaisala Protocol $No charge
4…20 mA* (2) 4…20 mA analogue output $No charge
0…20 mA* (3) 0…20 mA analogue output $No charge
0…5 V* (4) 0…5 V analogue output $No charge
0…10 V* (5) 0…10 V analogue output $No charge
*NOTE: Analog output mode requires grounding of pin 5, connecting to pin 3
Options:Temperature Compensation(Selection 3)
Setpoint 25°C** (A) Temperature Setpoint 25°C** $No charge
Setpoint 37°C** (B) Temperature Setpoint 37°C** $No charge
Active Internal*** (C) Active Internal Compensation $No charge
**NOTE: Compensation Setpoint can be updated via RS485 communications
***NOTE: Uses probe internal sensing. Accuracy limited to ±3 °C in typical

Options: Background Gas Compensations (Selection 5)
0 %O2, 0 %RH** (A) Background gas setpoint 0 %O2, 0 %RH** $No charge
21 %O2, 50 %RH** (B) Background gas setpoint 21 %O2, 50 %RH** $No charge
19.7 %O2, 93 %RH** (C) Background gas setpoint 19.7 %O2, 93 %RH** $No charge
**NOTE: Compensation Setpoint can be updated via RS485 communications

Options: Cable (Selection 6)
No cable (0) No Cable $No charge
223263 (1) Cable with open wires (1.5m) $ 44.-
CBL210347 (2) High temperature durable cable (special plug)** $ 66.-
244669 (3) Cable with open wires and 90° plug (0.6m) $ 44.-
216546 (4) Cable with open wires (10m) $ 73.-
**NOTE: Can only be ordered in multiples of 10, Only useable with mA output

Options: Mounting (Selection 7)
No mounting (0) No mounting accessories $No charge
243257SP (1) Probe Mounting Clips $ 17.-
243261SP (2) Probe Mounting Flange $ 58.-
 
GMP251: Spare Parts and Accessories
Spare Parts and Accessories:

ASM211650SP Standard Membrane Filter, Dia 24.8mm $ 29.-
DRW243649SP Porous Sintered PTFE filter, Dia 24.8mm $ 44.-
ASM211697SP Flow-through adapter with gas ports, Dia 24.8mm $ 73.-
223263SP Cable with open wires (1.5m) $ 44.-
244669SP Cable with open wires and 90° plug (0.6m) $ 44.-
216546SP Cable with open wires (10m) $ 78.-
CBL210347SP High temperature durable cable (special plug), M12 5pin $ 66.-
      NOTE: Can only be ordered in multiples of 10, Only useable with mA output
243257SP Probe Mounting Clips (2 pcs) $ 29.-
243261SP Probe Mounting Flange $ 73.-
242659 USB cable for PC connection $ 95.-
CBL210472 MI70 connection cable for probe $ 204.-
DRW244827SP Calibration Adapter $ 116.-


HVAC CO2

GMW80 Series Carbon Dioxide and Temperature Transmitters
    for Demand-Controlled Ventilation

GMW80 SeriesVaisala GMW80 Series Carbon Dioxide and Temperature Transmitters are designed for convenience, reliability and cost efficiency in demand-controlled ventilation applications.

The Vaisala CARBOCAP® Carbon Dioxide and Temperature Series GMW80 transmitters are wall-mount transmitters designed to fulfill the needs for CO2 measurements in standard demand-controlled ventilation applications. The CO2 measurement is based on a second-generation CARBOCAP® sensor, which uses a novel, microglow light source instead of an incandescent light bulb for a longer trouble-free lifetime.

The internal reference in the CO2 sensor guarantees the best stability and operation also in constantly occupied buildings without frequent readjustments. The CARBOCAP® sensors give correct CO2 measurements immediately when powered on as they have a built-in reference measurement. Proper operation can be verified immediately after snapping on the device cover.

Easy to install

The installation of one unit takes less than 2 minutes. With modern buildings often having hundreds of sensors, the installation time per unit can be a significant cost factor. Returning to the building site to check sensor operation adds further costs.

The GMW80 series transmitters include a number of subtle design features that have been introduced to make installation and commissioning quick and easy. The pull-out tab makes opening the transmitter faster than before, while also doubling as a quality check slip and holder for the anti tamper screw. The back plate can be twisted onto pre-mounted screws, and the wiring can be done easily on the clearly marked back plate. The electronics can be snapped on later when the building automation system is commissioned.

Reliable Operation

The GMW80 series transmitters are optimized for low maintenance. The second-generation, low-power CARBOCAP® technology enables a longer lifetime and superior stability than ever before. As the power consumption is low, the heat generated by the electronics does not distort the temperature inside the sensor. The internal reference in the CO2 sensor guarantees the best stability and operation even in constantly occupied buildings without frequent readjustments. The reliable operation and accurate measurement values of the GMW80 series transmitters contribute to the significant cost savings brought by demand-controlled ventilation.

Features/Benefits

▪ Cost-efficient, affordable
▪ Reliable and maintenance-free operation up to 15 years
▪ Superior stability due to 2nd-gen proprietary CARBOCAP® technology
▪ Improved accuracy due to low self-heating of microglow light source
▪ Easy to install, easy to use
▪ Versatile – works well in buildings occupied 24/7
▪ Ideal for demand-controlled ventilation
       Data sheets on GMW80 Series (pdf file, opens in new tab)

For the new entry level CO2, GMW80, see
      www.vaisala.com/en/products/carbondioxide/Pages/GMW80.aspx

GMW86P CO2+T transmitter, 0…2000ppm, Pt1000 $ 189.-                                       2/16
GMW86PT CO2+T transmitter, 0…2000ppm, Pt1000, T set point 10KΩ $ 218.-
GMW83 CO2+T transmitter, 0…2000ppm, 2 x 0…10V $ 204.-
GMW83T CO2+T transmitter, 0…2000ppm, 2 x 0…10V, T set point 10KΩ $ 233.-
GMW83A CO2+T transmitter, 0…2000ppm, 2 x 0…10V, CO2 LED:s $ 233.-
GMW83D CO2+T transmitter, 0…2000ppm, 2 x 0…10V, Display $ 248.-
GMW83RP CO2+RH+T transmitter, 0…2000ppm, 3 x 0..10V, Pt1000 $ 262.-
GMW83DRP CO2+RH+T transmitter, 0…2000ppm, 3x 0..10V, Pt1000, Disp $ 306.-
GMW83RPC CO2+RH+T transmitter, 0…2000ppm, 3x 0..10V, Pt1000, $ 335.-
1 pt calibration
GMW83DRPC CO2+RH+T transmitter, 0…2000ppm, 3x 0…10V, Pt1000, $ 379.-
Display, 1 pt calibration
GMW84 CO2+T transmitter, 0…2000ppm, 2 x 4…20mA $ 204.-
GMW84S CO2+T transmitter, 0…2000ppm, 2 x 4…20mA $ 233.-
 
GMW80 Spare Parts:
GM10SP80 Replacement Digital CO2 module for GMW80 series $ 131.-
15778HM INTERCAP® Sensor $ 73.-

 

GMW115 Carbon Dioxide Transmitter for Demand Controlled Ventilation

Room carbon dioxide level is an indicator for indoor air quality and human presence. It can be used to steer ventilation to introduce GMW115an adequate (but not excess) air flow based on the true need for fresh air.
Demand controlled ventilation is well suited to buildings and premises where occupancy varies.
Examples of such facilities are schools, offices, meeting rooms, auditoriums, and sports arenas.

▪ Compact, wall-mounted transmitter for demand controlled ventilation
▪ Incorporates Vaisala CARBOCAP®, the silicon based NDIR sensor with unique internal referencing
▪ Advanced, single-beam, dual wavelength measurement with no moving parts
▪ Excellent long-term stability
▪ Ideal for ventilation control in all types of occupied spaces

The sensor features an electrically tunable Fabry-Perot Interferometer for built-in reference measurement.
The sensor not only measures CO2 absorption but also a reference, which makes it possible to compensate for potential light intensity variations and contamination and dirt accumulation in the optical path, making the sensor extremely stable over time.

CO2-measurement range 0 ... 2000 ppm,  0.....5000 ppm
Accuracy (including repeatability, nonlinearity and calibration uncertainty) ±(2 % of range + 2 % of reading)
Long-term stability ± 5 % of range/5 years
Operating voltage 24 V (±20 %) AC/DC
Outputs 4 … 20 mA,  0 … 10 V,     RS-485, 2-wire, non-isolated
      Data on GMW115 (pdf file, opens in new tab)

GMW115 Wall Mount, 0...2000ppm CO2 transmitter for DCV   $ 340.-   +GST     5/14
          4…20mA (not loop powered), 0…10V or RS485 output.

 

 

GMW116  Carbon Dioxide and Temperature Transmitter  

Carbon dioxide & temperature transmitter for HVAC applications

The new Vaisala CARBOCAP® Carbon Dioxide and Temperature Transmitter GMW116 is a wall-mounted sensor designed for HVAC applications.

It has all the benefits familiar to the GMW115 CO2 transmitter with its proven track record:

• Ideal for ventilation control in all types of occupied spaces including those with round-the-clock occupancy
• Advanced single-beam dual wavelength measurement
• No moving parts
• Excellent long-term stability
• Warranty time 2 years

The GMW116 has two 0 ... 10 V outputs scaled 0 ... 2000 ppm CO2,   and 0 ... 50 °C.
As the GMW116 measures the temperature it can naturally compensate for the ideal gas temperature dependence causing most of the temperature dependence in CO2 transmitters.
It offers these additional benefits:
• No need for temperature compensation
• Compact dual-parameter transmitter; measures both CO2 and T

   Data sheet on GMW116 (pdf file, opens in new tab)     Mfr site

CO2 Measurement range:            0 ... 2000 ppm
Temperature measurement range: 0 ... +50 °C
Accuracy (including repeatability, nonlinearity and calibration uncertainty)
     ± (2 % of range + 2 % of reading

Operating environment
Temperature 0 ... +50 °C
Humidity 0 ... 85 % RH
Pressure 700 ... 1200 hPa

Operating voltage 24 V (±20 %) AC/DC     Power consumption <2 W
Outputs 0 … 10 V

GMW116 Wall Mount, CO2 and temperature transmitter:   $355+GST    5/14
          two DCV 0 to 10VDC outputs, scaled 0 to 2000ppm  &  0 to 50°C

 


GM20 Series Carbon Dioxide Transmitters
            for Demand Controlled Ventilation

GM20 series includes the following products:

      GMD20(D) duct-mount transmitter (with display)

      GMW21(D) wall-mount transmitter (with display) - now superseded by GMW80 above

The duct-mounted Vaisala CARBOCAP® Carbon Dioxide Transmitter Series GMD20 and wall mounted GMW20 are specially designed for Demand Controlled Ventilation (DCV).
They are easy to install and require no maintenance.     The recommended calibration interval is five years.

• Versatile transmitters
• Duct and wall mount models
• Incorporates the Vaisala CARBOCAP® sensor - the silicon based NDIR
• Excellent long-term stability
• Negligible temperature dependence
• Easy to install
• Five year recommended calibration interval
• Warranty time 2 years

CARBOCAP NDIR Transmitters

GM20 Series Carbon Dioxide Transmitters are specially designed for demand controlled ventilation and related applications.
The GM20 Series Transmitters are ideal for monitoring air quality in public, commercial and residential buildings. 

The transmitters incorporate the new silicon based CARBOCAP® Sensor.
The simple structure and reference measurement capabilities make this Single-Beam Dual-Wavelength NDIR sensor extremely stable and reliable.
Dust, water vapor or most chemicals do not affect the measurement accuracy of the sensor.

Versatile transmitters
Duct and wall mount models
Incorporates the Vaisala
            CARBOCAP® sensor - the silicon based NDIR
NDIR = Non-Dispersive Infra Red (makes the sensor highly gas specific).

Excellent long-term stability
Negligible temperature dependence
Easy to install
Five year recommended calibration interval

Technical specifications
Measurement range: 0...2000 ppm (nominal, can be calibrated for other ranges)
Accuracy:   ± 30 ppm + 2 % of reading
Operating temperature:   -5...+45 °C

The GMW20 series transmitters can be used independently or they can be incorporated into building energy management systems.

The individual sensor types have a 3rd letter in the part no, e.g. GMD... (duct mount) or GMW... (wall mount)

The GMW20 series transmitters are wall mount, and available in two sizes (GMW21 and GMW22).
The GMD20 is a duct mountable transmitter.

Optional LonMark® approved interface modules are available for digital communication between the transmitters and a LonWorks network.

An analogue temperature option is available for the GMW21.
The GMA20T offers active temperature measurement using a semiconductor sensor IC.
The measurement module has a voltage output of 0...10 V, corresponding to a measurement range of 0...50 ºC.
The accuracy of the module is 0.5 ºC. 

Nominal range of the CO2 sensors is 0..2000ppm.
They can be calibrated for other ranges: 0...5000ppm,   0...10,000ppm,   0...20,000ppm

   Data on GMD20 & GMW20 Series (.pdf, opens in new tab)        Data on GM20 Series (Vaisala site, opens in new tab)

 

GMD20       0-2000 ppm, duct mount transmitter with 0-20mA, 4-20mA or 0-10V outputs, diffusion aspirated.
      Supply voltage 18...30VDC. 24VAC.   
GMD20D    GMD20 unit with LCD display & relay  

Prices:

GMD20: FOR HVAC USE
GMD20   Duct mount CO2 transmitter for 0…2000ppm         $ 349.-                          2/16
GMD20D Duct mount CO2 transmitter for 0...2000ppm, display & relay $ 393.-

    See below for GMM20W description

Options for GMx2x Series:
GMI 21 Display option and Relay output $ 114.-            2/16   These items are also listed below under GMM20W description
GMR 20 Relay output $ 79.-
GML20 LonWorks option $ 221.-
19412GM Disk (with XIF file) for Installation of GMD/W20 with GML20 $ 15.-
19748GM Disk (with XIF file) for Installation of GMD/W20 with GML20T $ 15.-
19222GM Calibration software kit for GMD/W20 series $ 189.-
    ( Disk + RS232 serial COM adapter )
19040GM Serial COM Adapter (Vaisala Model) $ 189.-

 

GMM20W  OEM Module - see below

 


GMW90: FOR HVAC USE - CO2 to CO2+RH+T

The wall-mounted Vaisala GMW90 Series CARBOCAP® Carbon Dioxide, Temperature and Humidity Transmitters are intended for demand controlled ventilation applications.
GMW90They measure carbon dioxide and temperature and have an option for an additional humidity measurement.

GMW90 in brief:
A flexible CO2 transmitter family with a variety of options and features
Both analog and digital output models available
Comes with a calibration certificate
Easy installation due to well-designed features such as snap-on electronics, dip switches, and display
Convenient calibration:
      Choose either a field exchangeable measurement module or calibrate using a hand-held meter or a reference gas bottle.

GMW90 family includes the following models:

GMW93(D) CO2+T,           voltage output (with display)
GMW93R(D) CO2+T+RH, voltage output (with display)
GMW93RA CO2+T+RH ,   voltage output with CO2 indicator LED and display
GMW94(D) CO2+T,             current output (with display)
GMW94R(D) CO2+T+RH,  current output (with display)
GMW95(D) CO2+T,           digital model (with display)
GMW95R(D) CO2+T+RH, digital model (with display)

▪ Measured parameters: carbon dioxide, temperature, and humidity (optional)
▪ Superior long-term stability with the next generation Vaisala CARBOCAP® sensor
▪ Accurate temperature and humidity measurements in a three-parameter instrument - low-power microglow infrared source
▪ Quick and easy installation and maintenance
▪ Calibrated, user-exchangeable modules for carbon dioxide, temperature and humidity
▪ 3-point traceable CO2 calibration (certification included)
▪ Both analog and digital communication (BACnet/Modbus)

    Data on GMW90 Series        GMW90 Presentation    (pdf files, open in new tab)

    GMW90 and HMW90 Series Transmitters with Analog Output Quick Guide

    GMW90 and HMW90 Series Transmitters with Digital Output Quick Guide

    GMW90R Order Form     GMW90 Order Form      (pdf files, open in new tab)

 

GMW90

GMW90 CO2+T transmitter, configurable $ 459.-             2/16
GMW90R CO2+RH+T transmitter, configurable $ 604.-

GMW93 CO2+T transmitter Voltage output $ 444.-
GMW93D CO2+T transmitter, 0…10V output with display $ 444.-
GMW93R CO2+RH+T transmitter, 0…10V output $ 590.-
GMW93RA CO2+RH+T transmitter, 0…10V output with LED indicator $ 604.-
GMW93RD CO2+RH+T transmitter, 0…10V output with display $ 590.-

GMW94 CO2+T transmitter, 4…20mA output $ 444.-
GMW94D CO2+T transmitter, 4…20mA output with display $ 444.-
GMW94R CO2+RH+T transmitter, 4…20mA output $ 590.-
GMW94RD CO2+RH+T transmitter, 4…20mA output with display $ 590.-

GMW95 CO2+T transmitter, Modbus/BACnet $ 444.-
GMW95D CO2+T transmitter, Modbus/BACnet with Display $ 444.-
GMW95R CO2+RH+T transmitter, Modbus/BACnet $ 590.-
GMW95RD CO2+RH+T transmitter, Modbus/BACnet with Display $ 590.-

Options, Spare Parts & Accessories for xMW90 Series

236285 Decorative Cover set for XMW90 family 10pcs $ 146.-      2/16
Solid Cover White RAL9003 FOC
Display Cover White RAL9003 FOC
Solid Cover Black RAL9005 $ 15.-
Display Cover Black RAL9005 $ 15.-
Solid Cover No Logo RAL9003 $ 15.-
Display Cover No Logo RAL9003 $ 15.-
Indicator Cover (RAL9003, display and CO2 indicators) $ 15.-

GMW90 Spare Parts and Accessories:
    *Supplied with Calibration Certificate
GM10SP Replacement Digital CO2 module for GMW90 series $ 236.-
HTM10SP Digital Humidity and Temperature Module* $ 218.-
TM10SP Digital Temperature Module* $ 73.-
219980SP Connection cable for HM70 hand-held meter $ 150.-
219690 USB cable for PC connection $ 99.-
DRW237339SP Sliding cover HMW90 Spare Parts $ 29.-
DRW237354SP Sliding cover, blank HMW90 Spare Parts $ 29.-

 

GMW80 - see above

 


GM70 Hand Held CO2 Meter

Consists of MI70AUS Indicator, plus one probe from the list below.
Displays CO2 concentration in either ppm or %.

• Proven Vaisala CARBOCAP® reliability
• Two optional sampling methods: diffusion or pump aspiration
• User-friendly meter with multilingual user interface
• Numerical and graphical display of measurements
• Data can be logged and transferred to PC via MI70 Link software
• Wide selection of measurement ranges
• Easy recalibration using the interchangeable probes
• Suitable for field checking of fixed CO2 instruments
• Short warm-up time
• Compact and versatile

  Brochure on GM70 (.pdf file, opens in new tab)

  Order Form showing options (.pdf)       Data on GM70 (Vaisala site)

      Configuration code required

MI70AUS Indicator with backlit LCD display.
Displays up to 3 parameters at a time either numerically or graphically.
Includes data logging and can be used as a field calibrator for Vaisala transmitters.
Complete with rechargeable battery and AC adapter          $1340+GST        5/14

GMH70SUB CO2 probe for MI70.
CO2 measurement ranges of
  0 .. 2 %, 0 .. 3 %, 0 .. 5%, 0 .. 10%, 0 .. 20 %, 0 .. 2000 ppm, 0 .. 3000 ppm, 0 .. 5000 ppm, 0 .. 7000 ppm, 0 .. 10000 ppm.
Please specify range when ordering.                                 $1530

GM70PSUB CO2 probe and pump for MI70.
CO2 measurement ranges of
  0 .. 2 %, 0 .. 3 %, 0 .. 5%, 0 .. 10%, 0 .. 20 %, 0 .. 2000 ppm, 0 .. 3000 ppm, 0 .. 5000 ppm, 0 .. 7000 ppm, 0 .. 10000 ppm.
Please specify range when ordering.                                 $2310
 

Options, Spare Parts and Accessories  for GM70

GM70: Options          Configuration code required for GM70
Options:Indicator Type (selection 1)
MI70AUS (E) Measurement Indicator with AC adapter and rechargeable batteries $ 874.-    2/16
(Suitable for use with HM70, GM70, DM70 & MM70 probes)

Options:Indicator Accessories (selection 2)
(0) No Indicator Accessories $No charge
MI70Link (1) MI70 Windows software with RS232 cable $ 100.-
27168ZZ (2) MI70 Analogue output cable $ 47.-
(3) MI70Link with RS232 and analog output signal cables $ 146.-
219687 (4) USB cable for MI70 with MI70Link Windows® software $ 100.-

Options:Transmitter connection cable (selection 3)
(0) No indicator cable $No charge
GMA70 (1) Adaptor cable for transmitter $ 236.-

Options:Sampling Method (selection 4)
GMH70SUB CO2 probe and handle (see ranges below) $ 1092.-
GM70PSUB CO2 probe and pump (see ranges below) $ 1899.-
Available Ranges: 0..2000/3000/5000/7000 & 10000 ppm
0..2%, 0..3%, 0..5%, 0..10% and 0..20%.
Please specify the range when ordering

Options:Probe Accessories (selection 6)
(0) No Accessories $No charge
26150GM (1) Field checking adapter for GMT220/GM70/GMM220 $ 118.-

Options:Carry case (selection 8)
(1) No carrying case $No charge
MI70CASE3 (2) Waterproof carry case (MI70CASE3) $ 335.-
GM70: Spare Parts and Accessories

Accessories:AC-Adapters
MI70AUSADAPTER AC Adapter for use with MI70 $ 82.-
26755 Rechargeable NiMH Battery Pack $ 44.-

Accessories:Connection Cables
27168ZZ MI70 Analogue output cable $ 47.-
GMA70 Connection cable for fixed CO2 instruments $ 236.-
219687 USB cable for Mi70 with Mi70Link Windows® software $ 100.-
MI70Link MI70 Windows software with RS232 cable $ 100.-
213107SP 10m extension cable for the MI70 probes $ 83.-

Accessories:Carrying cases
MI70CASE3 Waterproof carry case $ 335.-

Accessories: Others
GMP 221 Spare CO2 probe for GMT 221 $ 699.-
GMP 222 Spare CO2 probe for GMT 222 $ 699.-
25378GMSP Spare Filter + Cap for GMP221 $ 44.-
25879GMSP Spare Filter + Cap for GMP222 $ 44.-
GM70PUMP Pump unit for GM70 $ 1310.-
GMH70 Spare Handle for GM70 $ 510.-
26150GM Field checking adapter for GMT220/GM70/GMM220 $ 118.-
212807GM Moisture Exchanger (0.6m Nafion tubing) $ 437.-


CO2 Transmitter OEM Modules

GMM20W  OEM transmitter

GMM20W 0-2000ppm, OEM transmitter (circuit board with no outer case)
The GMM20W module is intended for OEM applications related to ambient CO2 measurement.

The use of GMM20W transmitter modules results in considerable savings in installation, operation, maintenance and recalibration costs and ensures the best possible quality of measurement.

The module itself is small in size and thus, easily integrated into various systems.  

• Incorporates the silicon based Vaisala CARBOCAP® Sensor
• Stable in terms of time and temperature
• Dust, water vapor or most chemicals do not affect the measurement accuracy of the sensor
• Small size enables easy integration into various systems
     
Brochure on GMM20W (.pdf, opens in new tab)      Data on GMM20W (Vaisala site, opens in new tab)

GMM20W 0-2000 ppm, OEM transmitter
with 0-20mA, 4-20mA or 0-10V outputs, diffusion aspirated.
Supply voltage 18...30VAC/VDC  
GMM20W CO2 OEM-module      $ 306.-   2/16

Options for GMx2x Series:              Also listed above
GMI 21 Display option and Relay output $ 114.-               2/16
GMR 20 Relay output $ 79.-
GML20 LonWorks option $ 221.-
GML20T LonWorks Option with T Sensor, Only GMW21 $ 341.-
19412GM Disk (with XIF file) for Installation of GMD/W20 with GML20 $ 15.-
19748GM Disk (with XIF file) for Installation of GMD/W20 with GML20T $ 15.-
19222GM Calibration software kit for GMD/W20 series $ 197.-
( Disk + RS232 serial COM adapter )
19040GM Serial COM Adapter (Vaisala Model) $ 189.-
GMA20T Analog Temperature Option for GMW21 $ 80.-
 

GMP231: High Temperature Carbon Dioxide Probe for CO2 Incubators

GMP231AThe Vaisala CARBOCAP® Carbon Dioxide Probe GMP231 is designed to provide incubator manufacturers with accurate and reliable carbon dioxide measurements and sterilization durability at high temperatures.
The probe is based on Vaisala's patented CARBOCAP technology and a new type of infrared (IR) light source. These technologies allow for sterilization temperatures of up to 180°C, enabling easier and more complete sterilization without the risk of cross contamination.

• Probe durable during heat sterilization up to +180°C (+356°F)
• Incubator can be sterilized with probe in place – saving time and reducing risk of cross-contamination
• Based on the latest infrared CO2 sensor technology
• Designed for OEM use in CO2 incubators – installation options available
• CO2 sensor measurement optimized for 5%CO2, measurement range up to 20%CO2
• 4-point NIST traceable calibration (certificate included) for CO2
• Internal pressure and temperature measurement improve accuracy and stability
• Full temperature and pressure compensation available
• Sensor head heating for condensation prevention​​

      Data sheet on GMP231 (pdf file, opens in new tab)

Configuration code is required
GMP231A   0…20% standard CO2 Probe         $ 1136.-               2/16
Operating CO2 measurement 0…70°C, standby up to +195°C

Options:Cable(Selection 7)
No Cable (A) no cable $No charge
90cm Cable (B) Cable with open wires (90cm) $ 44.-
Custom Cable (C) Customized Cable (with Milli-Grid connector) $ 44.-

Options:Mounting(Selection 8)
No Mounting (1) no mounting accessories $No charge
Silicon Plug (2) Silicon Plug for sensor mounting (Ø ~44mm) $ 29.-
Silicon Plug+Metal F (3) Silicon Plug for sensor mounting (Ø ~44mm) +Metal Flange $ 44.-

Spare Parts and Accessories:
DRW240977SP M12 Connection Cable 0.9m w/ open ends $ 44.-
ASM210903SP M12 Connection Cable 0.6m w/ Milli-Grid connector $ 44.-
DRW240015SP Silicon Plug $ 29.-
DRW240247SP Attachment Bracket $ 29.-
DRW240494SP PTFE filter $ 29.-
221040 USB PC Connection cable $ 98.-
221801 MI70 Connection cable $ 130.-
239523 Calibration adapter for GMP231 $ 73.-

 

GMM220 Series - GMM221 & GMM222

For harsh environments
The Vaisala CARBOCAP® Carbon Dioxide Module Series GMM220 are designed for Original Equipment Manufacturers (OEM's) requiring carbon dioxide measurements in harsh and demanding applications.

• Incorporates Vaisala CARBOCAP® Sensor - the silicon based NDIR sensor
• Choice of several measurement ranges
• IP65 protected probe against dust and spray water
• Interchangeable probes provide easy maintenance

   GMM220 Series (pdf)       Order Form showing options (.pdf)  
                              (these open in new tabs)       GMM220 Series (Vaisala site)

     Configuration code required

GMM 221 OEM module includes probe for %CO2 measurement. $ 852.-
Available ranges: 0..2%, 0..3%, 0..5%, 0..10% and 0..20%.
Please specify the range when ordering
No probe cable supplied, please choose one from below

GMM 222 OEM module includes probe for ppm CO2 measurement. $ 852.-
Available ranges: 0..2000/3000/5000/7000 & 10000 ppm.
Please specify the range when ordering
No probe cable supplied, please choose one below

Cables, Options, Spare Parts  for GMM220 Series

Options:Probe Cable(Selection 10)
GMM220Z60 (A) 0.6m Probe cable for GMM220 $ 29.-
GMM220AZ60 (B) 0.6m Probe cable with 90° Conn. for GMM220 $ 29.-    2/16
GMM220Z200 (C) 2m Probe Cable for GMM220 $ 44.-
GMM220Z600 (E) 6 m Probe Cable for GMM220 $ 58.-
GMM220Z1000 (G) 10 m Probe Cable for GMM220 $ 66.-
GMM220Z100 (H) 1m High T (150 °C) Probe cable for GMM220 $ 66.-

Options:Probe Installation accessories(Selection 4)
25245GM Probe mounting clips (2 pieces) $ 15.-
GM45156 Probe mounting flange $ 70.-
26150GM Field checking adapter for GMT220/GM70/GMM220 $ 118.-

Spare Parts:
GMP 221 Spare CO2 probe for GMM 221 $ 699.-
GMP 222 Spare CO2 probe for GMM 222 $ 699.-
GMM220Z100SP 1m High T (150°C) Probe cable for GMM221/222 $ 99.-
GMP343Z200SP 2m Probe Cable for GMM221/222 $ 66.-
GMP343Z600SP 6 m Probe Cable for GMM221/222 $ 99.-
GMP343Z1000SP 10 m probe Cable for GMM221/222 $ 115.-
25245GMSP Probe mounting clips (2 pieces), Spare Part $ 44.-
GM45156SP Probe mounting flange, Spare Part $ 82.-
GMM220BOARD Spare Module Board GMM221/GMM222 $ 218.-


Note:   NDIR = Non-Dispersive Infra Red (makes the sensor highly gas specific).

GMM110 Series: Transmitter and Module Series

      Configuration code required

GMM111  OEM Carbon Dioxide Module for HVAC Applications

Compact CO2 module with flow-through aspiration
Ideal for light industrial OEM applications
Incorporates Vaisala CARBOCAP®, the silicon based NDIR sensor with unique internal referencing
Advanced single-beam, dual wavelength measurement with no moving parts
Measurement range options 0 ... 5 %, 0 ... 10 % and 0 ... 20 % CO2
Excellent long-term stability     

      Brochure on GMM111   (.pdf, opens in new tab)

      Order form showing options   (.pdf, opens in new tab)

      Configuration code is required

GMM111   0-2000 ppm, OEM transmitter
with 4-20mA or 0-10V outputs, diffusion aspirated.  Supply voltage 24VAC/VDC.
GMM111 CO2 Module GMM111 $ 510.-        2/16


GMM112 OEM Carbon Dioxide Module for HVAC Applications

GMM112 The Vaisala CARBOCAP® Carbon Dioxide Module GMM112 is a compact module for measuring ppm (parts per million) levels of carbon dioxide.
The GMM112 module is designed for indoor use in demand controlled ventilation and other applications requiring CO2 control.

• Compact OEM module for demand-controlled ventilation and other CO2 measurement applications
• Incorporates the Vaisala CARBOCAP® Sensor - the silicon-based NDIR sensor with unique internal referencing
• Advanced, single-beam, dual wavelength measurement with no moving parts
• Excellent long-term stability
• Ideal for ventilation control in all types of occupied spaces
      Data on GMM112     Order form showing options   (.pdf files, open in new tabs)

GMM112 CO2 Module GMM112   $ 277.-        2/16
 

Links to Vaisala site

CO2 Carbon Dioxide Sensor Data  (the links open in new tabs)

              Data on Vaisala CO2 Instruments      (Vaisala site, opens in new tab, covers the links above)

 

 

 

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